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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 544 |
| 2 | 54978 |
| 3 | 2202656 |
| 4 | 48476418 |
| 5 | 691716128 |
| 6 | 7084945602 |
| 7 | 55817621024 |
| 8 | 355503973378 |
| 9 | 1899821471264 |
| 10 | 8765537395906 |
| 11 | 35707241093152 |
| 12 | 130731957385474 |
| 13 | 436417246610464 |
| 14 | 1344075856982722 |
| 15 | 3856280011733536 |
| 16 | 10391060477284354 |
| 17 | 26476807505087008 |
[1,544,54978,2202656,48476418,691716128, 7084945602,55817621024,355503973378,1899821471264, 8765537395906,35707241093152,130731957385474, 436417246610464,1344075856982722,3856280011733536, 10391060477284354,26476807505087008] |